Description Product Name USB Load Electric Crusher Power Source Type Load Power Source DC3.6V Power Voltage 24 pieces per kit Application field: engraving, cleaning, polishing, paint, cutting, polishing, etc. Product voltage I3,7V Wide range of applications, widely used for sculpture, grinding, cutting, Polishing, etc. Security is important 1: When installing the flexible shaft or replacing the grinding head, be sure to disconnect the power plug 2: The mandrel between the flexible tree and the body, the mandrel between the flexible shaft and the grinding head, must be locked with a small key. 3: When the electric mill is turned on, the power switch must be in the OFF state. 4: Before processing, in addition to firmly attaching the workpiece, the electric grinder must also be lowered (without load), and the processing operation can only be made after confirmation of lack of anomaly. 5: Before the operation and use, the grinding heads used must be carefully inspected, and it is strictly forbidden to use damaged or cracked grinding heads 6: Wear protective goggles when using tools. 7: When processing parts. The pressure exerted by the hand on the electric grinder must be properly controlled and excessive force should not be used. 8: When using the cutting blade for treatment, make sure that the staff deviate from the tangent direction of the cutting blade to prevent the flying blade from hurting people. Use and maintenance 1: Once the flexible tree and the body of the connected electric grinder, do not disassemble them frequently, except in particular circumstances. 2: The electric mill runs for 15 to 20 minutes, please stop and cool. 3: For treatment procedures or unknown processing materials, please start the electric grinding speed from low, especially for plastics, plexiglass, etc. Who does not resist high temperatures for the material, pay more attention to low speed operation, otherwise it will melt the material and damage the grinding head. 4: For the first time using electric mills, please do waste experiences to gain experience. 5 / The resin cutter is slim and brittle, lift and lower lightly by entering the knife, keep the cutting sheet perpendicular to the room and do not shake it. 6: Check frequently if the power cord is properly connected and closed, if the plug is loose or twisted, and if the action of the switch and the speed control button are flexible and reliable Instructions of the Electrical tool When using electrical tools, in order to reduce accidents such as fires, electric shocks and injury, you must pay attention to the basic security features listed below; Please read carefully the following security features before continuing. 1. Keep the workplace clean and do not use electrical tools in workplaces and messy work surfaces. 2. Do not use electrical tools in dark and wet locations. Keep it out of the rain. Do not use in combustible liquids or where combustible gases exist. 3. Do not leave the children and idle on the workplace. The rollers do not allow rollers to approach tactile tools or power cables. 4. When the power tool is not used, it must be stored in a dry place and out of the reach of children, and must be locked.Keep 5. Keep an appropriate speed and pressure speed to make the tool operation safer and more durable. 6. Operate according to the specified application range and do not exceed compliance for overload processing. 7. You must maintain a correct posture when you work, you must stay firm and you do not have to stretch your hands on the tools to take things. 8. The knives must be lubricated and replaced from time to time to keep them sharpened and the wires must be checked regularly. 9. When the tools are not used or for maintenance, when you change the devices and knives, make sure you disconnect the power plug. 10. Check before turning on the switch to run the machine. It is necessary to check if the cutting tool adjustment tools and the fastening key are completely removed. 11. To avoid accidental startup, you must check if the tool switch is turned off before inserting the plug into the power source. After power up, do not frequently press your finger on the switch. 12. Exterior extensions, when using tools outside, be sure to use external extension cords. 13. Do not wear ample clothing or accessories to avoid tangling when the tool turns. Rubber gloves and non-slip industrial safety shoes should be worn outside. Protective cap. 14. Use safety glasses and wear a mask when there are too many chips and dust. Delivery quantity: 1pc, Package content: only the above package content, excluding other products. Size: 3*14.5cm (Warm prompt: the size is measured manually, please allow 1-2 cm measurement error)